Trigonal-Prismatic vs. Octahedral Geometry for MnII Complexes with Innocent Didentate Ligands: A Subtle Difference as Shown by XRD and DFT on [Mn(acac)2(bpy)]
نویسندگان
چکیده
منابع مشابه
Trigonal prismatic metal complexes: a not so rare coordination geometry?
The solid state structures of two metal complexes of a hexaamine macrobicyclic ligand, in which the metal ion has an exact trigonal prismatic geometry, have been determined. Theoretical calculations showed this is the most stable geometry for d(0), d(10) and high spin d(5) metal complexes of the ligand with M-N bond distances >∼2.35 Å.
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We report two tripodal frameworks, mono(2,2'-bipyrid-6-yl)bis(2-pyridyl)methanol () and bis(2,2'-bipyrid-6-yl)mono(2-pyridyl)methanol () which have one and two bipyridyl arms, respectively. Both ligands form complexes with the first row transition metals. Both ligands appear to overcome the steric strain involved in twisting the ligand to produce an octahedral complex and the solid state struct...
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Cationic arene ruthenium metalla-prisms of the general formula [Ru6(p-cymene)6(3-tpt)2-(OO∩OO)3] (3-tpt = 2,4,6tris(3-pyridyl)-1,3,5-triazine; OO∩OO = 5,8-dioxido-1,4-naphthoqui-nonato [1]6þ or 6,11-dioxido-5,12naphthacenedionato [2]6þ) have been obtained from the corresponding dinuclear arene ruthenium complexes [Ru2(pcymene)2(OO∩OO)Cl2] by reaction with 3-tpt, silver trifluoromethanesulfonate...
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Ru(ONO)2 and Os(ONO)2 distort from octahedral towards trigonal prismatic geometry in order to relieve π antibonding due to donation from the second-highest ligand orbital to the metal. Increasing oxidation of the ONO ligand suppresses distortion by increasing σ* interactions in the trigonal prism.
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This article describes the synthesis, structures and systematic study of the spectroscopic and redox properties of a series of octahedral molybdenum metal cluster complexes with aromatic sulfonate ligands (nBu4N)2[{Mo6X8}(OTs)6] and (nBu4N)2[{Mo6X8}(PhSO3)6] (where X- is Cl-, Br- or I-; OTs- is p-toluenesulfonate and PhSO3- is benzenesulfonate). All the complexes demonstrated photoluminescence ...
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ژورنال
عنوان ژورنال: European Journal of Inorganic Chemistry
سال: 2005
ISSN: 1434-1948,1099-0682
DOI: 10.1002/ejic.200401005